Hope seem very resistant to overtightening, Shimano seem pretty easy to damage with overtightening. And mountain bikers overtighten absolutely everything then blame the components when they break
Just comes down to numbers for me- Hope cost 4-5 times as much as XT, and it's an upfront cost. There's a labour saving but changing a BB takes minutes so it's not a big consideration. There's an increased chance of falling foul of incompatability (since you care less if your relatively disposable Shimano BB doesn't fit a new frame). So realistically, Hope has to last 5 or 6 times longer than XT to be a good alternative, and they don't.
If the maintenance side bothers you (or you can't fit them yourself) then things change, also you might just not like sending bits to landfill prematurely.
Middle ground is the EXT24 from Gusset, and its ilk- as servicable as Hope, not quite as durable, but 2/5ths the price